mirror of https://github.com/alibaba/MNN.git
45 lines
1.5 KiB
C++
45 lines
1.5 KiB
C++
//
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// ShapeGather.cpp
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// MNN
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//
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// Created by MNN on 2019/01/10.
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// Copyright © 2018, Alibaba Group Holding Limited
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//
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#include "core/Macro.h"
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#include "core/SizeComputer.hpp"
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#include "core/TensorUtils.hpp"
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namespace MNN {
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class GatherComputer : public SizeComputer {
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public:
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virtual bool onComputeSize(const MNN::Op* op, const std::vector<Tensor*>& inputs,
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const std::vector<Tensor*>& outputs) const override {
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MNN_ASSERT(2 == inputs.size());
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MNN_ASSERT(1 == outputs.size());
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auto embedding = inputs[0];
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auto indices = inputs[1];
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auto output = outputs[0];
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TensorUtils::getDescribe(output)->dimensionFormat = TensorUtils::getDescribe(embedding)->dimensionFormat;
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output->buffer().dimensions = indices->buffer().dimensions + embedding->buffer().dimensions - 1;
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for (int i = 0; i < indices->buffer().dimensions; i++) {
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output->buffer().dim[i].extent = indices->buffer().dim[i].extent;
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}
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for (int i = 0; i < embedding->buffer().dimensions - 1; i++) {
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output->buffer().dim[i+indices->buffer().dimensions].extent = embedding->buffer().dim[i + 1].extent;
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}
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output->buffer().type = embedding->buffer().type;
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TensorUtils::getDescribe(outputs[0])->dimensionFormat = TensorUtils::getDescribe(inputs[0])->dimensionFormat;
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return true;
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}
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};
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REGISTER_SHAPE(GatherComputer, OpType_Gather);
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} // namespace MNN
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